Rees may refer to: Places Rees, Germany, a city on the lower Rhine Rees, Illinois, United States, a community in the Jacksonville, Illinois micropolitan area Rees River, a river in New Zealand 45
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca758fa1d76430c89deed58b173e94f894c097a50e1d2b9ed1cf722cc464fe7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5e95203-e7a2-4b1d-a46e-6d45d8ea76d4.json and https://artists.proofprofile.net/proofs/artist/c5e95203-e7a2-4b1d-a46e-6d45d8ea76d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951fa8550c2d54c4b79607e8191604655834c66b80cb4eefb29072e5b86e8919. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2361919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd643cff7ad6ec3ac1e2377a06f153735af1a473d994eb9782774986cb21ebd7f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2361973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97e82b8e174aade86d1d32097bb3ee23c3a3b67f4153db3cb87d96490c8e11a. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2362032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd451eb67d3bba46141fbe0d030dc3b9ef73db4dc338c94c0e0c32752a825b6f5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2037926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9471dcd11f06fd860d69679026824f4e5fb0146cd24f025e38cd899c184027aa. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2361836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd451eb67d3bba46141fbe0d030dc3b9ef73db4dc338c94c0e0c32752a825b6f5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2037926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563440c859426bec2aa1239b383da58b3412a50065cd23cd7419c0cccb81cc48. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2037928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0622b2117f08b77206f65daecbc8de1de3d211209767be1dbd08666a3ab2e54f. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2037932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e715963273934bc7aec78962c889409ad0c45d860307fa1a3f261b32d9ad2fb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q2066520.
La Ciudad Donde los Sueños No Se Cumplen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2110ba619b7ff1e5df463a3d72498f87d141890280ed2e1335b308162850adf3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA011713112.